General fixes

+Fixed a bug that permitted to attack occupied oasis (even through the
farmlist) even if the oasis' owner was banned
+Rewritten some code in Units.php, for a better errors handling
+Fixed some errors that could have showed sometimes
+Fixed a bug that didn't permit to send an attack under certain
circumstances
+Villages/oasis with X = 0 or Y = 0 as a coordinates, can now be raided
+You are now be able to send resources with the merchants, at villages
with X = 0 or Y = 0 as a coordinates

winner.php

@@ -232,7 +232,7 @@ else {
 					<br /><br />
 					Best Regards,<br />
 					<?php echo SERVER_NAME; ?> Team<br /><br /><br /><br />
-					<small><i>(By: Shadow v8.3.4)</i></small></p>
+					<small><i>(By: TravianZ team v8.3.4)</i></small></p>
 
 					<br /><br />
 					<div style="text-align: center"><a href="dorf1.php">&raquo; Continue</a></div>